argued that the use of rescue and concomitant analgesics in placebo-controlled trials of pharmacotherapy for neuropathic and for low back pain contaminate findings, thus hindering interpretation and compromising replication of study findings [118]. Such contamination is problematic when participants have ...
argued that the use of rescue and concomitant analgesics in placebo-controlled trials of pharmacotherapy for neuropathic and for low back pain contaminate findings, thus hindering interpretation and compromising replication of study findings [118]. Such contamination is problematic when participants have ...